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    Re: Bubble Sextants
    From: Gary LaPook
    Date: 2008 Dec 16, 02:49 -0800

    Welcome aboard. I am an ATP and I have been doing inflight celnav for
    over 30 years. I recommend the following sources for flight
    navigation.
    
    gl
    
    Illustrations of inflight celestial navigation:
    
    
    http://www.oceannavigator.com/ME2/dirmod.asp?sid=&nm=&type=Publishing&mod=Publications%3A%3AArticle&mid=8F3A7027421841978F18BE895F87F791&tier=4&id=6C9EECDA2E6B47FF9CED1004D3437685
    
    
    http://www.geocities.com/chief_of_smoke/FlightCelnav.html
    
    
    
    
    
    
    You can download the current Air Force navigation manual here for
    free:
    
    http://www.e-publishing.af.mil/shared/media/epubs/AFPAM11-216.pdf
    
    Info on bubble sextants:
    
    http://home.earthlink.net/~s543t-24dst/airnav/index.html
    
    Online Bowditch:
    
    http://www.i-DEADLINK-com/bowditch/
    
    Online Nautical Almanac:
    
    http://www.tecepe.com.br/scripts/AlmanacPagesISAPI.isa
    
    Programs to printout versions of sight reduction tables:
    
    http://www.geocities.com/sadams16/Navigation1.html
    
    Naval observatory sight that computes altitudes for you:
    
    
    http://aa.usno.navy.mil/data/docs/celnavtable.php
    
    Download free navigation software:
    
    http://www.tecepe.com.br/nav/download.htm
    
    Excerpts from several air navigation texts:
    
    http://www.geocities.com/fredienoonan/
    
    
    Source for Air Almanac:
    
    http://aa.usno.navy.mil/publications/docs/ord_info.php
    
    
    
    You can download Bowditch and sight reduction tables here:
    
    
    http://www.nga.mil/portal/site/maritime/?epi_menuItemID=35ad5b8aabcefa1a0fc133443927a759&epi_menuID=e106a3b5e50edce1fec24fd73927a759&epi_baseMenuID=e106a3b5e50edce1fec24fd73927a759
    
    
    
    You should follow these threads on this site:
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/1d6b0951e889fa05?hl=en
    
    
    http://navlist.googlegroups.com/attach/514cdeffa7953b7d/Sextant+pages+from+NIF45-3.pdf?view=1&part=4&hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/a270bc3d6aeb66d4?hl=en
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/a270bc3d6aeb66d4/2bcbf70aead3cc52?hl=en&
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/0012f3a4c7d1f267?hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/529edc05997d59d7?hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/94479ee2fc5de7dd?hl=en
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/c9fa0798c9594bf8?hl=en
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/524a9eca071d603c?hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/cae9ea16af2181e2?hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/ddadaf07f0134905?hl=en
    
    http://groups.google.com/group/NavList/browse_thread/thread/5cdb8c65a672e990?hl=en
    
    
    http://groups.google.com/group/NavList/browse_thread/thread/af4f15cde5075f8f?hl=en
    
    
    
    
    
    On Dec 15, 6:40�am, JODIE COST  wrote:
    > I am a commercial pilot here in Alaska and just starting my education in 
    celestial navigation and I have two questions for the group.
    >
    > As I have yet to find anyone teaching celestial navigation in the Anchorage 
    area what home study courses or text do you recommend ?
    >
    > Since I plan on using these skills on land and from the cockpit I an 
    interested in a good bubble sextant, but which one? From what I've read, the 
    R.A.F. MK IX seems to be highly recommended but I have yet to find a reliable 
    source for them ( I won't use ebay for the purchase precision instruments). 
    The U.S.Navy MK 5 and the U.S.A.A.F. A-14 are available in overhauled 
    condition but don't seem to be as highly recommended as the MK IX.
    >
    > Since I plan to use this sextant for navigation in flight would an averaging device be useful?
    >
    > Thank you in advance for your help.
    >
    > Garry Cost� �
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